Johnson Controls CST29A-600 Adapter Block

The Johnson Controls CST29A-600 is an essential bearing head adapter block engineered for seamless integration with Carlyle semi-hermetic compressors. This component is specifically designed for Series O6CC, O6D, and O6E models equipped with an oil pump. It facilitates the installation of a P400 single point differential pressure switch, allowing technicians to upgrade from electromechanical lube oil control systems to high-precision electronic equivalents like the P545NCB-82. By monitoring the net lube oil pressure?the difference between oil discharge and suction pressure?this adapter ensures critical lubrication monitoring for heavy-duty refrigeration racks and chillers. The CST29A-600 is technically identical to the CST29A-600C and includes necessary Allen head bolts for a secure, leak-proof mount. For proper Carlyle parts replacement, always check for residual gasket material on the bearing head surface before mounting and utilize a torque wrench to reach the recommended 15 lb?ft for the mounting bolts to prevent thread stripping or oil seepage.

• Universal Carlyle Compatibility: Fits O6CC, O6D, and O6E series compressors, providing a versatile solution for commercial refrigeration service.
• Enhanced System Protection: Enables the use of electronic lube oil pressure controls to prevent compressor oil starvation and mechanical failure.
• Simplified Retrofitting: The CST29A adapter kit includes the required Allen head bolts, facilitating an easy conversion from older mechanical switches.
• Precise Pressure Monitoring: Optimized for use with the P400AD-1 differential pressure switch to maintain accurate net oil pressure readings.
• Rugged Construction: Comprised of high-quality materials to withstand the high-vibration environment of a compressor bearing head.

• Is the CST29A-600 interchangeable with the CST29A-600C? Yes, these part numbers refer to the same adapter block casting and are functionally identical for all Carlyle compressor applications.
• What torque setting should be used for the Allen head bolts? Technicians should use a torque wrench to tighten the supplied bolts to 15 lb?ft to ensure a proper seal without damaging the bearing head.
• Can this be used on an O6D compressor with a square cover plate? For older O6D models with ancient standard bearing heads (square plates), you must upgrade to the new style bearing head (06DA660126) to utilize this adapter block.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.